A stroke for the number 1 and Number 2 is B
" Explanation: The heart and the lungs are protected by the ribcage. The sternum in front, ribs in two side and 12 thoracic vertebrae in the back form the bony cage for protection of these vital organs."
The most common cause<span> of </span>cardiac arrest<span> is an arrhythmia called ventricular fibrillation — when rapid, erratic electrical impulses </span>cause<span> your ventricles to quiver uselessly instead of pumping blood.</span>
Answer: c. it will contract
Explanation:
An Erythrocyte is a Red Blood Cell and like all cells, when put in a Hypertonic solution (solution with a higher concentration of solutes than the cell) it will undergo a process known as Crenation.
Crenation occurs when due to Osmosis, water particles move out of the cell and into the solution because the solution is more concentrated with solutes than the cell. This causes the cell to SHRINK or CONTRACT.
I have attached a diagram to further describe it.
Answer: No it should not be reported because it is unrelated to the participation in the study.
Explanation:
The study was based on health and hygiene and disease prevention. Based on this study the diseases that can be taken into consideration which is related to health and hygiene.
The heart attack is not a disease which is caused by being into an unhygienic environment.
So, heart attack cannot be reported to IRB because the study was not based on this topic.